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 A104128 a(n) = p + p^(p+1), where p = prime(n). 3
 10, 84, 15630, 5764808, 3138428376732, 3937376385699302, 14063084452067724991026, 37589973457545958193355620, 480250763996501976790165756943064, 74462898441675122902293018227199467668020630, 529144398052420314716929933900838757437386767392 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Sum of reciprocals rapidly converges to 0.11196891489794721930017828981362.. LINKS Ray Chandler, Table of n, a(n) for n = 1..76 FORMULA a(n) = A000040(n) + A104126(n). MATHEMATICA Table[p + p^(p+1), {p, Prime[Range[12]]}] (* Robert G. Wilson v, Feb 27 2012 *) PROG (Maxima) A104128(n) := block( return(A000040(n)^(1+A000040(n))+A000040(n)) )\$ /* R. J. Mathar, Feb 27 2012 */ (PARI) A104128(n)=(n=prime(n))+n^(n+1) \\ M. F. Hasler, Feb 26 2012 CROSSREFS Sequence in context: A321295 A350903 A318793 * A345895 A014341 A323970 Adjacent sequences: A104125 A104126 A104127 * A104129 A104130 A104131 KEYWORD easy,nonn AUTHOR Cino Hilliard, Mar 06 2005 EXTENSIONS Definition corrected and incorrect program removed by R. J. Mathar, Feb 27 2012 More terms from Harvey P. Dale, Feb 27 2012 STATUS approved

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Last modified March 1 15:55 EST 2024. Contains 370442 sequences. (Running on oeis4.)